Major Link Network Banned from Google?

It appears that a major link network named Link Vault has been banned from Google. Conducting a search on www.link-vault.com brings up no results. Doing a site command brings up one result. Other data centers have the link-vault.com domain listed as well.

Is Google banning link networks? Will DigitalPoint's Coop be next?

Forum discussion at both Link Vault Forums and DigitalPoint Forums.